Device for successively exposing sensitive sheets.



No. 877,499. PATENTED JAN. 28, 1908.

0. P. GOERZ DEVICE FOR SUOOESSIVELY EXPOSING SENSITIVE SHEETS.

APPLICATION FILED NOV. 3, 1905.

3 SHEETSSHEET l.

No. 877,499. PATENTED JAN. 28, 1908. G. P. GOERZ. DEVICE FOR SUGGESSIVELY EXPOSING SENSITIVE SHEETS.

APPLICATION FILED NOV. 3, 1905.

3 SHEETS-SHEET 2.

No. 877,499. PATENTED JAN. 28, 1908.

G. P. GOERZ.

DEVIGEFOR SUOGESSIVELY EXPOSING SENSITIVE SHEETS.

APPLICATION FILED NOV. 3, 19 05.

3 SHEETS-SHEET 3.

62 .5 fmz UNITED STATES. PATENTQFHQE CARL PAUL GOERZ, or FGRUNEWALD, Nex s BERLIN, GERMANY.

DEVICE FOR SUCCESSIVELY EXPOSIN'G SENSITIVE SHEETS.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Applicptlonfiled November 3.1905. Serial No. 286.748.

To all whom it may concern:

Be it known that I, CARL PAUL GoERz, manufacturer, a citizen of the German Empkire, of 10 Bismarck-Allee, Grunewald, near erlin, Germany, have invented certain new and useful Improvements in a Device for ber.

Theinvention does away ith the necessity of providing a special cham er for gatheringlthe exposed sheets by using the light tig t envelop in which the sheets are inclosed before same are inserted into the exposing chamber at the same time as collectm chamber for the sheets after exposure.

herefore the invention comprises an exposing chamber and a package containing sensitive sheets said pac age having a light tight envelop adapted to be shifted off the sheets c ntainedtherein.

Partit ..lars of the invention are explained hereafter with reference to the drawings forming part of this specification.

In the drawings Figures 1 to 6 relate to changing of so called films and Figs. 7

g to 9 to the changing of plates. Fig. 1 is a representation of an exposing chamber adapted to inclose a pile of films. Fig. 2 shows a film with end extensions forming ulling strips. Fig. 3 shows a package with ms. Fig. 4 shows the exposing chamber of Fig. 1 filled with the package of Fig. 3. Fig. 5 is a longitudinal section through the film ackage represented in Fig. 3. Fig. 6 is a ongitudinal section through the filled exposing chamber the exposing chamber being shown closed we the light tight envelop or cover pulled from the fihns and out of the exposing chamber. Fig. 7 shows a package with plates. Fig. 8 is a section through an exposing chamber-filled with the acka e of Fig. 7. Fig. 9 is a section throng exposing chamber the envelop or cover of the package being pulled from the plates and out of the exposing chamber.

the filled 'mouth piece is tightly closed. grasps the flap m and at thesz-nne-time the;

When doing so ftlie light tight cover i is shifted ofi' the'filni Fig. 10 shows a longitudinal section through a modifica-fi 'tion in which the light-tight envelop contain ing the films is connected to the exposing. chamber from the outside without being at first inserted into said chamber.

Referring more particularly to Figs. 1 to 6 of the drawings: The exposing or film] changing chamber shown in Fig. 1 has a cover a jointed thereto said cover being provided at both ends with strips 5, c of velvet or similar material. the cover a is a strip d fastened to the expos;-

pressed together on closing the c'over a. At the end of the exposing chamber which is opposite. the end carrying the strip (5 the chamber is provided with a mouth. piece 6 having a free passage. The mouth piece 11 may be formed from cloth or other foldable material and rovided at the end turned to the outside of the exposing chamber with a rigid frame. The film represented in Fig. 2

is designated The fihnis provided at both ends with unsensitivc extensions forming pulling stri )S g, h. The light tight cover inclosing a pi e of films f is designated i. cover 1) is provided with side extensions t. The cover 7, is shiftable on the pile of films and for this purpose is provided at both ends Opposite the strip 0 of ing chamber, so that the strips 0, cl are The with ribs or stri )s k, 7c and Z, Z, respectively of velvet or simi ar material adapted to form passages for the pulling strips and the films and to make a light tight contact witli op-j 1.

posite surfaces of the pile. cover 71 of the film package is provided with The light tight a flap m, which may be grasped in order to shift the envelop 'ioil the films.

The use and operation of the devices de scribed is as follows: Assuming that the exposing chamber has been opened as is shown in Fig. 1 of the drawing, then the iilm packi age shown .in Fig. 3 is inserted in suchfamanner that the flap m and the pulling strips h pass through the channel of the mouthpiece 6. Now the cover a of the exposing" chamber is closed with the effect that the flaps g are squeezed between the ribs c, d of the exposing chamber; at the same timeth'e rib b is pressed against the side wall arms-amouth piece e so that the channel of such flaps g and begins to pull.

Now one chamber is exhausted this can also be done.

-. brought into a dark-room and the exposing chamber must be opened. In this instance opposite the end which has the pulling flap p 1 cover 6 is loosened from the exposing chammouthpiece c. a The movement of the cover iis hunted by engagement of the side extensions '11- ,of-the envelop 'i. with the mouth piece c.'.- Now-thje cover "i has the position shown inFigQG and 'jams the strips it between its ribs Z. The cover i may be turned over so as to contact, with the cover of the ex osing chamber this being enabled bythe fo dable nature of the material forming the mouth piece 0. If now a film has been'exposed and chamber whichis formed by the cover. i, then the operator rasps the pulling strip or flap h of said film and pulls the film between the ribs 7c of the cover '6 into the hollow of the This procedure is repeated as often as a has been exposed within the exposing chamber. If the films in the exposing cham. her, which originally in unexposed condition were in the cover i, are all exposed and transported back into the cover i then the appa ratus is brought into a dark room and the her and the films are taken out for development'.

If it is desired to develop exposed films before the whole stock within the exposing In this instance the apparatus mustalso be it is necessary to lift the sensitive films within the exposing chamber and to pull the ex-' posed films, by grasping the flaps back into the exposing'chai'nber and to take them out. The unexposed films may remain within that exposing chamber and also the cover i may remain, connected with the exposing cham-' ber for further use as collecting chamber for the unexposed films which. arestill within the exposing chamber.

Referring now particularly to Figs. 7 to 9 it is to be stated that the devices shown in these figures differ from the described de- 1 vices only in so far that means are provided for allowing the light tightcover of the package to be shifted from the pile of sensitive lates which is thicker than the pile of films. n this instance simple ribs like the ribs 7c in Fig. 5 would not be sufhcient to secure at the same time light tight jamming of the flaps g and to allowthe passage of thepile of plates between such ribs. Now the package of plates illustrated in Figs. 7 to 9 has a light tight cover which is provided with a bag-like end-piece n at that end of. the cover which is connected thereto. This bag-like end piece consists of foldable material such as paper and has a flap 1) adapted to close the end of the bag by being pasted to the side face of the bag as is clearly shown in Fig. 7 ofthe drawing. 11 is a thread or wire which may be interpo 'd between the flap p and the side into the exposing chamber in the same manner as'formerly described in connection with the package for films. \Nhen. the flap p pasted on the side face of the bag 7L has been cut through by the wire' (1, the bag may be 0 'ened as shown in Fig 8, allowing the p ates contained within the package to pass through the open end ofthe bag, so that the envelop i may be drawn outside the exposing chamber, whereas the plate'sremain within the exposingchamber as shown in Fig. 9@

Theexposing chamber is provided with 1 ribs or strips 1', s of velvet or similar materialadapted to in a light excludingmanner j am' the plate flaps between them, so that after the insertion of the package into theexpos ing chamber the opening of the flap by cutting it through 'wlth the threadg may be effected without danger of entering light into the exposing chamber through the open bag. At the end opposite the strips 1', s the exposing chamber is provided with an extension-t forming a channel in free connection with the interior-of the exposing-chamberand rovided with a mouthpiece to forming a, lig t tight bearing for the envelop a p I After the bag it has been opened as described the cover *5 may be shifted from the plates and pulled out of the exposing chamber and the plates may be transported into the 1101- low of such cover just in the same manner as formerl described with relation to films.

In the ore-going description 'ithas'been m assumed that the package with sensitized sheets is inserted into the exposing chamber and that thenthe light tight cover is pulled from the films or plates so that the same remain within the exposing chamber whereas the-cover istransported out of the, exposing chamber however remaining in light tight connection with same. The process itself only requiresa collecting chamber outside the exposing chamber and in light tight connection with same and sensitized sheets withinthe exposing chamber and adapted tobe pulled'mto the collecting chamber. Therefore the manipulationabove described may be modified'in such-a manner that instead of inserting the package'into the exposing chamber and pulling the light tight cover off" the sensitizedsheets the package with the sensitized sheets may be lighttightly joined with the exposing chamber from the outside and the sensitized sheets pulled from the light tight cover intothe ex-' osing chamber. 'In this instance the pullmg strips of the sensitized sheets on the one of successively exposing the'sensitized sheets 1 originally contained. within 'the;- package side the one end of the length of the light-- tight cover of the package to outside the other end of said package as is clearly shown in Fig. 100i the drawings. In this modifica.

tion' of the procedure it is necessary to tear oi? the pulling stri 'of each sensitized sheet at the free end of t e exposing chamber after exposing before drawingsaid exposed sheet into the light tight cover forming the collecting chamber in order to expose the next sensitized sheet because otherwise said pulling strip would form a coverfor the sensitized sheet to be exposed. The devices above described are however substantially independent from the several modifications of the procedure which may be adopted.

I have shown and described the best means now known to me of embodying my invention without intending to limit myself to the exact, constructions so described and shown except as the scope of the'claims demands.

Having now described my invention what I claim and desire to secure by Letters Pat- 'ent is 1. A device for successively exposing sensitive sheets comprising an exposing chamber having an open mouth and a package comprising sensitive sheets and an inclosinglighttight envelop, said envelop being adapted to be shifted with relation to the sensitive sheets contained therein in such a manner that one element of the package passes through the open mouth of the exposing chamber.

2. A device for successively exposing sensitive sheets comprising an exposinggchamber having an open mouth and a package of sensitive sheets contained in a lighttight envelop, said package to be connected with the exposing chamber, the sensitive sheets being provided at opposite ends outside the envelop with unsensitive extensions and the elements of the package being adapted to be shifted with relation to each other in such a manner, that one element passes through the open mouth of the exposing chamber.

3. A device for successively exposing sensitive sheets comprising an exposing chamber having an open mouth and a package comprising sensitive sheets and' an inclosinglighttight envelop forming one single compartment, each sensitive sheet being provided at least at one end with an extension extending outside the envelop, said envelop being adapted to be shifted with relation to the sensitive sheets contained therein such a manner that one element of the package passes through the open mouth of the exposing chamber.

4. As a new article of manufacture, a package comprising one or more sensitive elements having tabs, and a light-tight envelop slidably mounted thereon.

5. As a new article of manufacture, a pack age comprising one or more sensitive elements each having a long tab on one end and i a short tab on the othe'rend, and a light-tight envelop normally surrounding the sensitive elements and adapted to be moved on to the long tab.

6. As a new article of manufacture, a package comprising one or more sensitive elements having tabs and a light-tight envelop slidably mounted on the sensitive elements and having at least one tab.

7. As a new article of manufacture, a package comprisin'g'oi1e or more sensitive elements having tabs and a light-tight envelop slidably mounted on the sensitive elements, said light-tight envelop being provided at least at one end with light excluding members tightly inclosing the said sensitive elements with tabs.

8. As a new article of manufacture, a package comprising one or more sensitive elements having tabs and a light-tight envelop slidably mounted on the sensitive elements, said light-tight envelop being provided at least at one end with a pair of ribs opposite to each other, the ribs forming a pair tightly inclosing the said sensitive elements with tabs between them.

9. As a new article of manufacture, a package comprising one or more sensitive elements having tabs and a lighttight envelop slidably mounted on the sensitive elements, said light-tight envelop being provided at one ehd with a pair of ribs tightly inclosing the tabs of the sensitive elements between them in a light excluding manner and at the opposite end with a baglike part adapted to form a light-tight closure of t e envelop.

10. The combination of an exposing chamber, a package of sensitive elements removably located therein and having tabs projecting from the opposite ends thereof, and a light tight envelop surrounding the sensitive elements and adapted to be partially drawn out of said exposing chamber, for substantially the purposes set forth.

' 11. The combination of an exposing chamher, a package of sensitive elements removably'located therein and having long tabs projecting from one end of the chamber and short tabs projecting tromv the opposite end thereof, and a light tight envelop surrounding the sensitive elements and adapted to be partially drawn out of said chamber so as to cover the long tabs, for substantially the purposes set forth.

12. The combination of an exposing chamber, having openings in its opposite ends, a package of sensitive elements located in said chamber and having tabs projecting through the end Openings thereof, and a light tight In testimony whereof -I have signed this envelop surrounding said' sensitive elements specification in the presence of two subscriband havinga tab projecting through one of ing Witnesses.

the end openings of said chamber, said en- CARL PAULGOERZ. velop being adapted to-be partially drawn \Vitnesses: out through'one end opening of the chamber, XVOLDEMAR HALPT, for substantially the purposes set forth. H ENRY HASPER. 

